Finding the Fourth Proportional to 28,123,722.05, 42,116,789.77 and 25,397,430.53

Step by Step Solution

1. Step 1: Write the proportion equation
   28,123,722.05 : 42,116,789.77 = 25,397,430.53 : x
2. Step 2: Convert to fraction form
   28,123,722.05/42,116,789.77 = 25,397,430.53/x
3. Step 3: Cross multiply
   28,123,722.05x = 42,116,789.77 × 25,397,430.53
4. Step 4: Simplify right side
   28,123,722.05x = 1,069,658,242,056,112
5. Step 5: Solve for x
   x = 1,069,658,242,056,112/28,123,722.05
6. Step 6: Final answer
   x = 38,034,021.26