Finding the Fourth Proportional to 111,421,018.60, 153,654,148.18 and 71,687,996.26

Step by Step Solution

1. Step 1: Write the proportion equation
   111,421,018.60 : 153,654,148.18 = 71,687,996.26 : x
2. Step 2: Convert to fraction form
   111,421,018.60/153,654,148.18 = 71,687,996.26/x
3. Step 3: Cross multiply
   111,421,018.60x = 153,654,148.18 × 71,687,996.26
4. Step 4: Simplify right side
   111,421,018.60x = 11,015,158,000,061,328
5. Step 5: Solve for x
   x = 11,015,158,000,061,328/111,421,018.60
6. Step 6: Final answer
   x = 98,860,683.01