Finding the Fourth Proportional to 77,708,109.57, 107,236,635.98 and 42,425,913.57

Step by Step Solution

1. Step 1: Write the proportion equation
   77,708,109.57 : 107,236,635.98 = 42,425,913.57 : x
2. Step 2: Convert to fraction form
   77,708,109.57/107,236,635.98 = 42,425,913.57/x
3. Step 3: Cross multiply
   77,708,109.57x = 107,236,635.98 × 42,425,913.57
4. Step 4: Simplify right side
   77,708,109.57x = 4,549,612,249,625,032
5. Step 5: Solve for x
   x = 4,549,612,249,625,032/77,708,109.57
6. Step 6: Final answer
   x = 58,547,457.59