Finding the Fourth Proportional to 111,371,075.82, 153,689,771.52 and 61,808,570.64

Step by Step Solution

1. Step 1: Write the proportion equation
   111,371,075.82 : 153,689,771.52 = 61,808,570.64 : x
2. Step 2: Convert to fraction form
   111,371,075.82/153,689,771.52 = 61,808,570.64/x
3. Step 3: Cross multiply
   111,371,075.82x = 153,689,771.52 × 61,808,570.64
4. Step 4: Simplify right side
   111,371,075.82x = 9,499,345,099,639,380
5. Step 5: Solve for x
   x = 9,499,345,099,639,380/111,371,075.82
6. Step 6: Final answer
   x = 85,294,543.76