Finding the Fourth Proportional to 113,636,085.12, 156,817,729.89 and 61,425,121.59

Step by Step Solution

1. Step 1: Write the proportion equation
   113,636,085.12 : 156,817,729.89 = 61,425,121.59 : x
2. Step 2: Convert to fraction form
   113,636,085.12/156,817,729.89 = 61,425,121.59/x
3. Step 3: Cross multiply
   113,636,085.12x = 156,817,729.89 × 61,425,121.59
4. Step 4: Simplify right side
   113,636,085.12x = 9,632,548,125,961,028
5. Step 5: Solve for x
   x = 9,632,548,125,961,028/113,636,085.12
6. Step 6: Final answer
   x = 84,766,631.27