Finding the Fourth Proportional to 42,009,233.60, 63,065,026.20 and 26,656,493.60

Step by Step Solution

1. Step 1: Write the proportion equation
   42,009,233.60 : 63,065,026.20 = 26,656,493.60 : x
2. Step 2: Convert to fraction form
   42,009,233.60/63,065,026.20 = 26,656,493.60/x
3. Step 3: Cross multiply
   42,009,233.60x = 63,065,026.20 × 26,656,493.60
4. Step 4: Simplify right side
   42,009,233.60x = 1,681,092,467,284,132.50
5. Step 5: Solve for x
   x = 1,681,092,467,284,132.50/42,009,233.60
6. Step 6: Final answer
   x = 40,017,213.44