Finding the Fourth Proportional to 57,091,070.21, 78,785,753.61 and 30,985,588.41

Step by Step Solution

1. Step 1: Write the proportion equation
   57,091,070.21 : 78,785,753.61 = 30,985,588.41 : x
2. Step 2: Convert to fraction form
   57,091,070.21/78,785,753.61 = 30,985,588.41/x
3. Step 3: Cross multiply
   57,091,070.21x = 78,785,753.61 × 30,985,588.41
4. Step 4: Simplify right side
   57,091,070.21x = 2,441,222,934,020,757
5. Step 5: Solve for x
   x = 2,441,222,934,020,757/57,091,070.21
6. Step 6: Final answer
   x = 42,760,153.65