Finding the Fourth Proportional to 277,671,870.88, 383,339,792.40 and 189,698,146.72

Step by Step Solution

1. Step 1: Write the proportion equation
   277,671,870.88 : 383,339,792.40 = 189,698,146.72 : x
2. Step 2: Convert to fraction form
   277,671,870.88/383,339,792.40 = 189,698,146.72/x
3. Step 3: Cross multiply
   277,671,870.88x = 383,339,792.40 × 189,698,146.72
4. Step 4: Simplify right side
   277,671,870.88x = 72,718,848,182,309,536
5. Step 5: Solve for x
   x = 72,718,848,182,309,536/277,671,870.88
6. Step 6: Final answer
   x = 261,887,702.03