Finding the Fourth Proportional to 61,692,547.91, 91,987,274.18 and 59,997,583.28

Step by Step Solution

1. Step 1: Write the proportion equation
   61,692,547.91 : 91,987,274.18 = 59,997,583.28 : x
2. Step 2: Convert to fraction form
   61,692,547.91/91,987,274.18 = 59,997,583.28/x
3. Step 3: Cross multiply
   61,692,547.91x = 91,987,274.18 × 59,997,583.28
4. Step 4: Simplify right side
   61,692,547.91x = 5,519,014,142,554,819
5. Step 5: Solve for x
   x = 5,519,014,142,554,819/61,692,547.91
6. Step 6: Final answer
   x = 89,459,980.66