Finding the Fourth Proportional to 72,472,906.84, 108,572,196.48 and 42,840,381.82

Step by Step Solution

1. Step 1: Write the proportion equation
   72,472,906.84 : 108,572,196.48 = 42,840,381.82 : x
2. Step 2: Convert to fraction form
   72,472,906.84/108,572,196.48 = 42,840,381.82/x
3. Step 3: Cross multiply
   72,472,906.84x = 108,572,196.48 × 42,840,381.82
4. Step 4: Simplify right side
   72,472,906.84x = 4,651,274,352,239,260
5. Step 5: Solve for x
   x = 4,651,274,352,239,260/72,472,906.84
6. Step 6: Final answer
   x = 64,179,492.10