Finding the Fourth Proportional to 219,111.70, 328,663.59 and 61,337.74

Step by Step Solution

1. Step 1: Write the proportion equation
   219,111.70 : 328,663.59 = 61,337.74 : x
2. Step 2: Convert to fraction form
   219,111.70/328,663.59 = 61,337.74/x
3. Step 3: Cross multiply
   219,111.70x = 328,663.59 × 61,337.74
4. Step 4: Simplify right side
   219,111.70x = 20,159,481,830.89
5. Step 5: Solve for x
   x = 20,159,481,830.89/219,111.70
6. Step 6: Final answer
   x = 92,005.50