Finding the Fourth Proportional to 42,487,170.48, 63,730,658.50 and 18,210,355.92

Step by Step Solution

1. Step 1: Write the proportion equation
   42,487,170.48 : 63,730,658.50 = 18,210,355.92 : x
2. Step 2: Convert to fraction form
   42,487,170.48/63,730,658.50 = 18,210,355.92/x
3. Step 3: Cross multiply
   42,487,170.48x = 63,730,658.50 × 18,210,355.92
4. Step 4: Simplify right side
   42,487,170.48x = 1,160,557,974,300,973.50
5. Step 5: Solve for x
   x = 1,160,557,974,300,973.50/42,487,170.48
6. Step 6: Final answer
   x = 27,315,492.21