Finding the Fourth Proportional to 111,153,161.34, 153,461,085.54 and 71,529,535.18

Step by Step Solution

1. Step 1: Write the proportion equation
   111,153,161.34 : 153,461,085.54 = 71,529,535.18 : x
2. Step 2: Convert to fraction form
   111,153,161.34/153,461,085.54 = 71,529,535.18/x
3. Step 3: Cross multiply
   111,153,161.34x = 153,461,085.54 × 71,529,535.18
4. Step 4: Simplify right side
   111,153,161.34x = 10,977,000,116,894,420
5. Step 5: Solve for x
   x = 10,977,000,116,894,420/111,153,161.34
6. Step 6: Final answer
   x = 98,755,626.78