Finding the Fourth Proportional to 139,522,109.40, 209,283,164.10 and 42,477,046.20

Step by Step Solution

1. Step 1: Write the proportion equation
   139,522,109.40 : 209,283,164.10 = 42,477,046.20 : x
2. Step 2: Convert to fraction form
   139,522,109.40/209,283,164.10 = 42,477,046.20/x
3. Step 3: Cross multiply
   139,522,109.40x = 209,283,164.10 × 42,477,046.20
4. Step 4: Simplify right side
   139,522,109.40x = 8,889,730,630,357,882
5. Step 5: Solve for x
   x = 8,889,730,630,357,882/139,522,109.40
6. Step 6: Final answer
   x = 63,715,569.30