Finding the Fourth Proportional to 164,749,735.72, 247,139,128.38 and 61,120,141.48

Step by Step Solution

1. Step 1: Write the proportion equation
   164,749,735.72 : 247,139,128.38 = 61,120,141.48 : x
2. Step 2: Convert to fraction form
   164,749,735.72/247,139,128.38 = 61,120,141.48/x
3. Step 3: Cross multiply
   164,749,735.72x = 247,139,128.38 × 61,120,141.48
4. Step 4: Simplify right side
   164,749,735.72x = 15,105,178,491,829,482
5. Step 5: Solve for x
   x = 15,105,178,491,829,482/164,749,735.72
6. Step 6: Final answer
   x = 91,685,600.74