Finding the Fourth Proportional to 59,427,390.09, 81,934,390.43 and 42,473,903.21

Step by Step Solution

1. Step 1: Write the proportion equation
   59,427,390.09 : 81,934,390.43 = 42,473,903.21 : x
2. Step 2: Convert to fraction form
   59,427,390.09/81,934,390.43 = 42,473,903.21/x
3. Step 3: Cross multiply
   59,427,390.09x = 81,934,390.43 × 42,473,903.21
4. Step 4: Simplify right side
   59,427,390.09x = 3,480,073,368,072,128.50
5. Step 5: Solve for x
   x = 3,480,073,368,072,128.50/59,427,390.09
6. Step 6: Final answer
   x = 58,560,090.94