Finding the Fourth Proportional to 60,998,621.16, 84,037,620.60 and 42,142,139.04

Step by Step Solution

1. Step 1: Write the proportion equation
   60,998,621.16 : 84,037,620.60 = 42,142,139.04 : x
2. Step 2: Convert to fraction form
   60,998,621.16/84,037,620.60 = 42,142,139.04/x
3. Step 3: Cross multiply
   60,998,621.16x = 84,037,620.60 × 42,142,139.04
4. Step 4: Simplify right side
   60,998,621.16x = 3,541,525,091,915,968
5. Step 5: Solve for x
   x = 3,541,525,091,915,968/60,998,621.16
6. Step 6: Final answer
   x = 58,059,100.76