Finding the Fourth Proportional to 53,152,128.80, 74,463,368.80 and 53,152,128.80

Step by Step Solution

1. Step 1: Write the proportion equation
   53,152,128.80 : 74,463,368.80 = 53,152,128.80 : x
2. Step 2: Convert to fraction form
   53,152,128.80/74,463,368.80 = 53,152,128.80/x
3. Step 3: Cross multiply
   53,152,128.80x = 74,463,368.80 × 53,152,128.80
4. Step 4: Simplify right side
   53,152,128.80x = 3,957,886,569,339,501
5. Step 5: Solve for x
   x = 3,957,886,569,339,501/53,152,128.80
6. Step 6: Final answer
   x = 74,463,368.80