Finding the Fourth Proportional to 15,242,196.14, 21,034,543.56 and 8,626,784.50

Step by Step Solution

1. Step 1: Write the proportion equation
   15,242,196.14 : 21,034,543.56 = 8,626,784.50 : x
2. Step 2: Convert to fraction form
   15,242,196.14/21,034,543.56 = 8,626,784.50/x
3. Step 3: Cross multiply
   15,242,196.14x = 21,034,543.56 × 8,626,784.50
4. Step 4: Simplify right side
   15,242,196.14x = 181,460,474,223,606.25
5. Step 5: Solve for x
   x = 181,460,474,223,606.25/15,242,196.14
6. Step 6: Final answer
   x = 11,905,139.69