Finding the Fourth Proportional to 70,155,439.37, 105,233,989.43 and 42,495,388.53

Step by Step Solution

1. Step 1: Write the proportion equation
   70,155,439.37 : 105,233,989.43 = 42,495,388.53 : x
2. Step 2: Convert to fraction form
   70,155,439.37/105,233,989.43 = 42,495,388.53/x
3. Step 3: Cross multiply
   70,155,439.37x = 105,233,989.43 × 42,495,388.53
4. Step 4: Simplify right side
   70,155,439.37x = 4,471,959,267,869,821.50
5. Step 5: Solve for x
   x = 4,471,959,267,869,821.50/70,155,439.37
6. Step 6: Final answer
   x = 63,743,585.79