Finding the Fourth Proportional to 144,554,061.48, 216,831,086.16 and 42,318,098.64

Step by Step Solution

1. Step 1: Write the proportion equation
   144,554,061.48 : 216,831,086.16 = 42,318,098.64 : x
2. Step 2: Convert to fraction form
   144,554,061.48/216,831,086.16 = 42,318,098.64/x
3. Step 3: Cross multiply
   144,554,061.48x = 216,831,086.16 × 42,318,098.64
4. Step 4: Simplify right side
   144,554,061.48x = 9,175,879,292,337,218
5. Step 5: Solve for x
   x = 9,175,879,292,337,218/144,554,061.48
6. Step 6: Final answer
   x = 63,477,146.19