Finding the Fourth Proportional to 191,626,788.47, 287,442,463.69 and 53,443,988.18

Step by Step Solution

1. Step 1: Write the proportion equation
   191,626,788.47 : 287,442,463.69 = 53,443,988.18 : x
2. Step 2: Convert to fraction form
   191,626,788.47/287,442,463.69 = 53,443,988.18/x
3. Step 3: Cross multiply
   191,626,788.47x = 287,442,463.69 × 53,443,988.18
4. Step 4: Simplify right side
   191,626,788.47x = 15,362,071,632,393,656
5. Step 5: Solve for x
   x = 15,362,071,632,393,656/191,626,788.47
6. Step 6: Final answer
   x = 80,166,618.43