Finding the Fourth Proportional to 42,003,526.50, 63,015,918.58 and 11,711,389.50

Step by Step Solution

1. Step 1: Write the proportion equation
   42,003,526.50 : 63,015,918.58 = 11,711,389.50 : x
2. Step 2: Convert to fraction form
   42,003,526.50/63,015,918.58 = 11,711,389.50/x
3. Step 3: Cross multiply
   42,003,526.50x = 63,015,918.58 × 11,711,389.50
4. Step 4: Simplify right side
   42,003,526.50x = 738,003,967,190,666.88
5. Step 5: Solve for x
   x = 738,003,967,190,666.88/42,003,526.50
6. Step 6: Final answer
   x = 17,570,047.77