Finding the Fourth Proportional to 25,291,050.58, 34,902,494.56 and 15,499,602.91

Step by Step Solution

1. Step 1: Write the proportion equation
   25,291,050.58 : 34,902,494.56 = 15,499,602.91 : x
2. Step 2: Convert to fraction form
   25,291,050.58/34,902,494.56 = 15,499,602.91/x
3. Step 3: Cross multiply
   25,291,050.58x = 34,902,494.56 × 15,499,602.91
4. Step 4: Simplify right side
   25,291,050.58x = 540,974,806,248,435.19
5. Step 5: Solve for x
   x = 540,974,806,248,435.19/25,291,050.58
6. Step 6: Final answer
   x = 21,389,969.73