Finding the Fourth Proportional to 56,854,046.32, 78,458,583.90 and 30,748,564.15

Step by Step Solution

1. Step 1: Write the proportion equation
   56,854,046.32 : 78,458,583.90 = 30,748,564.15 : x
2. Step 2: Convert to fraction form
   56,854,046.32/78,458,583.90 = 30,748,564.15/x
3. Step 3: Cross multiply
   56,854,046.32x = 78,458,583.90 × 30,748,564.15
4. Step 4: Simplify right side
   56,854,046.32x = 2,412,488,800,167,307.50
5. Step 5: Solve for x
   x = 2,412,488,800,167,307.50/56,854,046.32
6. Step 6: Final answer
   x = 42,433,018.52