Finding the Fourth Proportional to 57,091,146.79, 78,785,860.53 and 30,985,664.98

Step by Step Solution

1. Step 1: Write the proportion equation
   57,091,146.79 : 78,785,860.53 = 30,985,664.98 : x
2. Step 2: Convert to fraction form
   57,091,146.79/78,785,860.53 = 30,985,664.98/x
3. Step 3: Cross multiply
   57,091,146.79x = 78,785,860.53 × 30,985,664.98
4. Step 4: Simplify right side
   57,091,146.79x = 2,441,232,279,543,585.50
5. Step 5: Solve for x
   x = 2,441,232,279,543,585.50/57,091,146.79
6. Step 6: Final answer
   x = 42,760,259.98