Finding the Fourth Proportional to 56,649,041.64, 84,651,074.72 and 42,535,263.12

Step by Step Solution

1. Step 1: Write the proportion equation
   56,649,041.64 : 84,651,074.72 = 42,535,263.12 : x
2. Step 2: Convert to fraction form
   56,649,041.64/84,651,074.72 = 42,535,263.12/x
3. Step 3: Cross multiply
   56,649,041.64x = 84,651,074.72 × 42,535,263.12
4. Step 4: Simplify right side
   56,649,041.64x = 3,600,655,736,605,980
5. Step 5: Solve for x
   x = 3,600,655,736,605,980/56,649,041.64
6. Step 6: Final answer
   x = 63,560,752.88