Finding the Fourth Proportional to 155,601,196.24, 214,730,320.31 and 85,038,253.60

Step by Step Solution

1. Step 1: Write the proportion equation
   155,601,196.24 : 214,730,320.31 = 85,038,253.60 : x
2. Step 2: Convert to fraction form
   155,601,196.24/214,730,320.31 = 85,038,253.60/x
3. Step 3: Cross multiply
   155,601,196.24x = 214,730,320.31 × 85,038,253.60
4. Step 4: Simplify right side
   155,601,196.24x = 18,260,291,434,131,008
5. Step 5: Solve for x
   x = 18,260,291,434,131,008/155,601,196.24
6. Step 6: Final answer
   x = 117,353,155.86